cucullus


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cucullus

[kyü′kəl·əs]
(invertebrate zoology)
A transverse flap at the anterior edge of the carapace that hangs over the mouthparts of certain arachnids.
References in periodicals archive ?
Wolfe and Estes (1992) found if the cucullus is removed, fruit set is highly reduced in the field but not if flowers were hand pollinated, suggesting the cucullus may act a pollinator guide.
But are distinct due to uncus long and narrow and sacculus and cucullus wide in Zadadra Moore and uncus slightly S-curved; sacculus almost fused by their ventral edges, their apices upturned; cucullus noticeably shorter than sacculus in Prabhasa Moore (Dubatolov & Zolotuhin, 2011).
scale-like setae completely absent; (iii) cucullus with only some scarce tubercles restricted to anterior and lateral margins; (iv) carapace without pits (Fig.
Observaciones: esta especie se asemeja en las estructuras de los genitales del macho a Scriptania syzygia Hampson, 1905, en estructuras como: ampulla con forma laminar; digitus delgado y agudo; forma y disposicion del cucullus y corona.
Valva estrecha despues del sacculus que se ensancha gradualmente hasta alcanzar el cucullus amplio; espina apical del sacculus debil sobre el margen ventral; costa engrosada; clasper corto, digitiforme, no alcanza el engrosamiento costal.
magnus by lacking deep cuticular pits on the carapace, cucullus, and abdomen, and from those of C.
Valva narrow, directed dorsad with cucullus above uncus; sacculus sinuate, with inward bend 1/3 distance from base.
paramediana has a slender and sharper uncus, a considerably shorter and more rounded proximal lobe of valva, a slightly broader, less rounded cucullus, a more slender tegumen, a significantly longer and more curved ampulla and a shorter, somewhat thicker aedeagus compared with those of M.
Uncus slender and long, sharp apically; tegumen relatively narrow; valva intermediate in size; cucullus arched; harpe slender and curved distally, shorter than uncus, sharp apically and bifurcate basally; sacculus intermediate in size, left processus blunt, right processus pointed; clavus triangular; saccus relatively broad (Fig.
The new species is very similar to Pangrapta lasiophora (Hampson, 1926) in its external features, but can be distinguished in that the new species has a darker wing ground color, a broader cucullus, V-shaped saccus and the straight and long vesica compared to lasiophora.
seminigra (Hampson, 1896), but can be distinguished from it by the narrowed wing without an antemedial line, the uncus broad medially with a curved and pointed apex, and valva slightly curved versus straight in seminigra; cucullus round, narrower than in seminigra; harpe robust with spur at apex; aedeagus longer than in seminigra; ductus bursae longer than in seminigra; corpus bursae without signa.
Uncus slender, broadened in base; tegumen weakly sclerotized, more or less narrow, with round anterior margin; valva with dense bristles on cucullus posteriorly, especially along margin; sacculus broadly developed; juxta elongate, usually longer than width of valva; aedeagus stout, with fine spines in apical portion.